A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5935-00-243-2048
NSN 5960-01-391-1308
NSN 5960-01-439-3731
NSN 5965-00-764-1841
NSN 5975-00-907-7487
NSN 6105-01-505-3367
NSN 5996-01-399-6677
NSN 5975-01-648-5260
NSN 4140-01-485-3321
NSN 5895-01-552-1417
NSN 2925-01-281-6403
NSN 5960-00-930-5360